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Rodrigues-Silva F, V M Starling MC, Amorim CC. Challenges on solar oxidation as post-treatment of municipal wastewater from UASB systems: Treatment efficiency, disinfection and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157940. [PMID: 35952890 PMCID: PMC9554792 DOI: 10.1016/j.scitotenv.2022.157940] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/05/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
The application of solar photo-Fenton as post-treatment of municipal secondary effluents (MSE) in developing tropical countries is the main topic of this review. Alternative technologies such as stabilization ponds and upflow anaerobic sludge blanket (UASB) are vastly applied in these countries. However, data related to the application of solar photo-Fenton to improve the quality of effluents from UASB systems are scarce. This review gathered main achievements and limitations associated to the application of solar photo-Fenton at neutral pH and at pilot scale to analyze possible challenges associated to its application as post-treatment of MSE generated by alternative treatments. To this end, the literature review considered studies published in the last decade focusing on CECs removal, toxicity reduction and disinfection via solar photo-Fenton. Physicochemical characteristics of effluents originated after UASB systems alone and followed by a biological post-treatment show significant difference when compared with effluents from conventional activated sludge (CAS) systems. Results obtained for solar photo-Fenton as post-treatment of MSE in developed countries indicate that remaining organic matter and alkalinity present in UASB effluents may pose challenges to the performance of solar advanced oxidation processes (AOPs). This drawback could result in a more toxic effluent. The use of chelating agents such as Fe3+-EDDS to perform solar photo-Fenton at neutral pH was compared to the application of intermittent additions of Fe2+ and both of these strategies were reported as effective to remove CECs from MSE. The latter strategy may be of greater interest in developing countries due to costs associated to complexing agents. In addition, more studies are needed to confirm the efficiency of solar photo-Fenton on the disinfection of effluent from UASB systems to verify reuse possibilities. Finally, future research urges to evaluate the efficiency of solar photo-Fenton at natural pH for the treatment of effluents from UASB systems.
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Affiliation(s)
- Fernando Rodrigues-Silva
- Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Maria Clara V M Starling
- Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Camila C Amorim
- Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil.
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Sukma Safitri A, Michelle Kaster K, Kommedal R. Effect of low temperature and municipal wastewater organic loading on anaerobic granule reactor performance. BIORESOURCE TECHNOLOGY 2022; 360:127616. [PMID: 35840026 DOI: 10.1016/j.biortech.2022.127616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/07/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Biogas production and municipal wastewater COD removal at low temperatures by granulated anaerobic biomass were investigated. Two anaerobic granule reactors were operated continuously for 1025 days by stepwise increase of organic loading from 1.3 to 15.2 g CODdissolved·l-1·d-1 at 25, 16, 12, 8.5, 5.5, and 2.5 °C. The sustained reactor performance was evaluated by COD removal efficiency, methane production, and microbial community analysis. Stable COD removal of 50-70% were achieved at 25-8.5 °C and up to 15 g CODdissolved·l-1·d-1, and no significant temperature effect was observed on specific methane production rate and yield. Below 8.5 °C, COD removal and methane yields reduced, but still significant methane formation was observed even at 2.5 °C. More than 90% of COD removed was converted to methane. Methanogenic archaea communities showed that temperature changes affected the major methane formation pathways, which explains temperature adaptability of the granules.
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Affiliation(s)
- Anissa Sukma Safitri
- Institute of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, 4036 Stavanger, Norway
| | - Krista Michelle Kaster
- Institute of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, 4036 Stavanger, Norway
| | - Roald Kommedal
- Institute of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, 4036 Stavanger, Norway.
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Papp LA, Cardinali-Rezende J, de Souza Júdice WA, Sanchez MB, Araújo WL. Low biological phosphorus removal from effluents treated by slow sand filters. Appl Microbiol Biotechnol 2022; 106:5797-5809. [PMID: 35930038 DOI: 10.1007/s00253-022-12077-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 07/01/2022] [Accepted: 07/11/2022] [Indexed: 11/02/2022]
Abstract
The legislation for environment protection requires strict controls of the wastewater releasing in water bodies. The wastewater treatment plants (WWTP) have been used for organic matter degradation; however, the residual total phosphorus (TP) removal has not been efficient. TP and nitrogen present in wastewater are associated to eutrophication of water bodies and algae growth. Therefore, this study discusses the efficiency of phosphorus removal by a slow filter (SF), complementary to a WWTP and the microbial community involved. The results showed that the use of SF, with or without macrophytes, is not suitable to remove TP. Spatial variation in microbial communities distributed in three distinct zones was identified in the SF. Proteobacteria, Bacteroidetes, Chloroflexi and Firmicutes covered the hydrolytic and fermentative bacteria. The acetogenesis, nitrification, and denitrification, as well as the removal of phosphorus from the effluent, were performed by representatives affiliated to different groups. Alphaproteobacteria, Betaproteobacteria, and Gammaproteobacteria among these, Dokdonella sp., Frateuria sp., Comamonas sp., Diaphorobacter sp., Nitrosospira sp., Ferruginibacter sp., Flavobacterium sp., and the uncultured OD1 were the most abundant bacteria in the SF. The low efficiency for TP removing from SF effluents can be explained by the low abundance of phosphorus accumulating organisms (PAOs), with the association of the low concentration of biodegradable organic matter in the inlet effluent. Therefore, the alternative to using SF as a complement to WWTPs, as recommended by some Brazilian environmental agencies, did not prove to be viable and new approaches must be evaluated. KEY POINTS: • The phosphorus removal was performed by a slow filter system in a WWTP but obtained a low efficiency. • Microbial spatial variation was distributed into distinct zones from slow filter. • Low abundance of PAOs was observed due to the low availability of organic matter.
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Affiliation(s)
- Luiz Antonio Papp
- ICB, Integrated Center of Biotechnology, University of Mogi das Cruzes, Dr. Cândido Xavier de Almeida e Souza avenue, 200, Mogi das Cruzes, SP, cep 08780-911, Brazil
| | - Juliana Cardinali-Rezende
- CCNH, Center for Natural and Human Science, Federal University of ABC, Estados avenue, 5001, Santo André, SP, cep 09210-580, Brazil.,LABMEM/NAP-BIOP, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 1374, SP, cep 05508-900, São Paulo, Brazil
| | - Wagner Alves de Souza Júdice
- ICBR, Interdisciplinary Center for Biochemical Research, University of Mogi das Cruzes, Dr. Cândido Xavier de Almeida e Souza Avenue, 200, Mogi das Cruzes, SP, cep 08780-911, Brazil
| | - Marília Bixilia Sanchez
- LABMEM/NAP-BIOP, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 1374, SP, cep 05508-900, São Paulo, Brazil.,Distrito Industrial - Av. João XXIII, 1160c - Cezar de Souza, Mogi das Cruzes, 08830-000, Brazil
| | - Welington Luiz Araújo
- LABMEM/NAP-BIOP, Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 1374, SP, cep 05508-900, São Paulo, Brazil.
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Kuramae EE, Dimitrov MR, da Silva GHR, Lucheta AR, Mendes LW, Luz RL, Vet LEM, Fernandes TV. On-Site Blackwater Treatment Fosters Microbial Groups and Functions to Efficiently and Robustly Recover Carbon and Nutrients. Microorganisms 2020; 9:E75. [PMID: 33396683 PMCID: PMC7824102 DOI: 10.3390/microorganisms9010075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 12/04/2022] Open
Abstract
Wastewater is considered a renewable resource water and energy. An advantage of decentralized sanitation systems is the separation of the blackwater (BW) stream, contaminated with human pathogens, from the remaining household water. However, the composition and functions of the microbial community in BW are not known. In this study, we used shotgun metagenomics to assess the dynamics of microbial community structure and function throughout a new BW anaerobic digestion system installed at The Netherlands Institute of Ecology. Samples from the influent (BW), primary effluent (anaerobic digested BW), sludge and final effluent of the pilot upflow anaerobic sludge blanket (UASB) reactor and microalgae pilot tubular photobioreactor (PBR) were analyzed. Our results showed a decrease in microbial richness and diversity followed by a decrease in functional complexity and co-occurrence along the different modules of the bioreactor. The microbial diversity and function decrease were reflected both changes in substrate composition and wash conditions. Our wastewater treatment system also decreased microbial functions related to pathogenesis. In summary, the new sanitation system studied here fosters microbial groups and functions that allow the system to efficiently and robustly recover carbon and nutrients while reducing pathogenic groups, ultimately generating a final effluent safe for discharge and reuse.
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Affiliation(s)
- Eiko E. Kuramae
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands; (M.R.D.); (A.R.L.); (L.W.M.); (R.L.L.)
- Ecology and Biodiversity, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Mauricio R. Dimitrov
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands; (M.R.D.); (A.R.L.); (L.W.M.); (R.L.L.)
| | - Gustavo H. R. da Silva
- Department of Environmental and Civil Engineering, São Paulo State University (UNESP), Bauru 17033-360, Brazil;
| | - Adriano R. Lucheta
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands; (M.R.D.); (A.R.L.); (L.W.M.); (R.L.L.)
| | - Lucas W. Mendes
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands; (M.R.D.); (A.R.L.); (L.W.M.); (R.L.L.)
| | - Ronildson L. Luz
- Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands; (M.R.D.); (A.R.L.); (L.W.M.); (R.L.L.)
| | - Louise E. M. Vet
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands;
| | - Tania V. Fernandes
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands;
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Paranhos AGDO, Adarme OFH, Barreto GF, Silva SDQ, Aquino SFD. Methane production by co-digestion of poultry manure and lignocellulosic biomass: Kinetic and energy assessment. BIORESOURCE TECHNOLOGY 2020; 300:122588. [PMID: 31887579 DOI: 10.1016/j.biortech.2019.122588] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/07/2019] [Accepted: 12/07/2019] [Indexed: 05/09/2023]
Abstract
Six typical Brazilian lignocellulosic biomasses (rice straw, corn cob, peanut shell, sawdust, coffee husk and sugarcane bagasse) were evaluated for methane production by solid-state anaerobic co-digestion with poultry manure. The results showed the highest methane production was obtained with corn cob and poultry manure (126.02 Nm3 CH4. ton residue-1) using a food to inoculum ratio of 0.5, which lowered volatile fatty acids accumulation. In this condition, the thermal energy production (1.73 MJ.kg live chicken-1) would be able to replace 53.2% of the energy with firewood in poultry farming. The high hemicellulose and low lignin content in corn cob seem to explain the biomethanation of such biomass, and this agrees with the microbial analysis which revealed the predominance of bacteria related to plant polysaccharides hydrolysis and carbohydrate conversion in the inoculum. The methane production was best modelled by Groot's multi-stage model, and the microbial adaptation to lignin might explain this.
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Affiliation(s)
- Aline Gomes de Oliveira Paranhos
- Environmental Engineering Graduation Program, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil
| | - Oscar Fernando Herrera Adarme
- Environmental Engineering Graduation Program, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil
| | - Gabriela Fernandes Barreto
- Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil
| | - Silvana de Queiroz Silva
- Environmental Engineering Graduation Program, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil; Department of Biological Sciences, Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil
| | - Sérgio Francisco de Aquino
- Environmental Engineering Graduation Program, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil; Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto (UFOP), Ouro Preto 35450-000, Minas Gerais, Brazil.
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Sonthiphand P, Ruangroengkulrith S, Mhuantong W, Charoensawan V, Chotpantarat S, Boonkaewwan S. Metagenomic insights into microbial diversity in a groundwater basin impacted by a variety of anthropogenic activities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:26765-26781. [PMID: 31300992 DOI: 10.1007/s11356-019-05905-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 07/03/2019] [Indexed: 06/10/2023]
Abstract
Microbial communities in groundwater are diverse and each may respond differently to environmental change. The goal of this study was to investigate the diversity, abundance, and dynamics of microbial communities in impacted groundwater and correlate them to the corresponding land use and groundwater geochemistry, using an Illumina MiSeq platform targeting the V3 and V4 regions of the 16S rRNA gene. The resulting MiSeq sequencing revealed the co-occurrence patterns of both abundant and rare microbial taxa within an impacted groundwater basin. Proteobacteria were the most common groundwater-associated bacterial phylum, mainly composed of the classes Gammaproteobacteria, Betaproteobacteria, Alphaproteobacteria, and Deltaproteobacteria. The phyla detected at less abundances were the Firmicutes, Bacteroidetes, Planctomycetes, Actinobacteria, OD1, and Nitrospirae. The members of detected groundwater microorganisms involved in natural biogeochemical processes such as nitrification, anammox, methane oxidation, sulfate reduction, and arsenic transformation. Some of the detected microorganisms were able to perform anaerobic degradation of organic pollutants. The resulting PCA indicates that major land usage within the sampling area seemed to be significantly linked to the groundwater microbial distributions. The distinct microbial pattern was observed in the groundwater collected from a landfill area. This study suggests that the combinations of anthropogenic and natural effects possibly led to a unique pattern of microbial diversity across different locations at the impacted groundwater basin.
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Affiliation(s)
- Prinpida Sonthiphand
- Department of Biology, Faculty of Science, Mahidol University, 272 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand.
| | - Siwat Ruangroengkulrith
- Department of Biochemistry, Faculty of Science, Mahidol University, 272 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Wuttichai Mhuantong
- Enzyme Technology Laboratory, National Center for Genetic Engineering and Biotechnology, Phahonyothin Road, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Varodom Charoensawan
- Department of Biochemistry, Faculty of Science, Mahidol University, 272 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
- Integrative Computational BioScience (ICBS) Center, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom, Thailand
- Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom, Thailand
| | - Srilert Chotpantarat
- Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Research Program on Controls of Hazardous Contaminants in Raw Water Resources for Water Scarcity Resilience, Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Bangkok, Thailand
- Research Unit of Green Mining (GMM), Chulalongkorn University, Bangkok, Thailand
| | - Satika Boonkaewwan
- Research Program on Controls of Hazardous Contaminants in Raw Water Resources for Water Scarcity Resilience, Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Bangkok, Thailand
- International Postgraduate Program in Hazardous Substance and Environmental Management, Chulalongkorn University, 9th Floor, CU Research Building, Phayathai Road, Bangkok, 10330, Thailand
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Quintero M, Alzate M, Patiño F, Arboleda A, Pinzón Y, Mantilla A, Escalante H. Physicochemical and microbiological monitoring of anaerobic digestion at laboratory and low cost tubular digester. BIORESOURCE TECHNOLOGY 2019; 274:321-328. [PMID: 30529479 DOI: 10.1016/j.biortech.2018.11.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/22/2018] [Accepted: 11/25/2018] [Indexed: 06/09/2023]
Abstract
The aim of this work was to use an inexpensive technique, such as the most probable number, MPN to quantitatively and qualitatively examine microbial groups in anaerobic digestion, AD of cattle manure, CM. Different diluents and mixing ratios were evaluated in 100 mL reactors using biomethane potential, BMP, as output variable. MPN tests were performed to samples from a 23 L tank and 6.5 m3 low-cost tubular digester, LCTD. To monitor LCTD stability, volatile solids, VS, specific methanogenic activity, SMA, pH, volatile fatty acids, VFA, and chemical oxygen demand, COD were measured. Microbial characterization highlighted the optimal population essential to initiate the anaerobic digestion process. Bacteria domain were predominant over Archaea, with average abundance values of 78% and 22%, respectively. SMA of 0.0486 g COD g-1 SV d-1 was obtained at laboratory-scale and LCTD reached 83% of this value. Conditions selected are cost-effective to establish a biodigester in rural areas.
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Affiliation(s)
- M Quintero
- Grupo de Investigación en Tecnologías de Valorización de Residuos y Fuentes Agrícolas e Industriales para la Sustentabilidad Energética (INTERFASE), Escuela de Ingeniería Química, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia.
| | - M Alzate
- Escuela de Microbiología y Bioanálisis, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia
| | - F Patiño
- Grupo de Investigación en Medio Ambiente y Energías Renovables (GIEMA), Escuela de Ingeniería Mecánica, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia
| | - A Arboleda
- Escuela de Microbiología y Bioanálisis, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia
| | - Y Pinzón
- Escuela de Microbiología y Bioanálisis, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia
| | - A Mantilla
- Escuela de Microbiología y Bioanálisis, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia
| | - H Escalante
- Grupo de Investigación en Tecnologías de Valorización de Residuos y Fuentes Agrícolas e Industriales para la Sustentabilidad Energética (INTERFASE), Escuela de Ingeniería Química, Universidad Industrial de Santander, Carrera 27, Calle 9 Ciudad Universitaria, AA 678 Bucaramanga, Colombia
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Peng M, Yang A, Chen Y, Zhang G, Meng F, Ma X, Li Y. Microbiology community changes during the start-up and operation of a photosynthetic bacteria-membrane bioreactor for wastewater treatment. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.biteb.2018.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Niu L, Zhang X, Li Y, Wang P, Zhang W, Wang C, Wang Q. Elevational characteristics of the archaeal community in full-scale activated sludge wastewater treatment plants at a 3,660-meter elevational scale. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 76:531-541. [PMID: 28759436 DOI: 10.2166/wst.2017.215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to the important roles of archaea in wastewater treatment processes, archaeal communities have been studied extensively in various anaerobic reactors, but the knowledge of archaeal communities in full-scale activated sludge wastewater treatment plants (WWTPs) remains quite poor. In this study, 454-pyrosequencing was for the first time employed to investigate archaeal communities from 20 full-scale activated sludge WWTPs distributed at a 3,660-meter elevational scale in China. Results showed that archaeal communities from WWTPs were dominated by Methanosarcinales (84.6%). A core archaeal population (94.5%) composed of Methanosaeta, Methanosarcina, Methanogenium and Methanobrevibacter was shared among WWTPs. The elevational pattern of archaeal communities was observed in WWTPs, with an elevational threshold associated with archaeal community richness and structures at approximately 1,500 meters above sea level (masl). A declining trend in community richness with increasing elevation was observed at higher elevations, whereas no trend was presented at lower elevations. Spearman correlation analysis indicated that the archaeal community richness at higher elevations was associated with more environmental variables than that at lower elevations. Redundancy analysis indicated that wastewater variables were the dominant contributors to the variation of community structures at higher elevations, followed by operational variables and elevation.
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Affiliation(s)
- Lihua Niu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China E-mail:
| | - Xue Zhang
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Yi Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China E-mail:
| | - Peifang Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China E-mail:
| | - Wenlong Zhang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China E-mail:
| | - Chao Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China E-mail:
| | - Qing Wang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China E-mail:
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Quek PJ, Yeap TS, Ng HY. Applicability of upflow anaerobic sludge blanket and dynamic membrane-coupled process for the treatment of municipal wastewater. Appl Microbiol Biotechnol 2017. [DOI: 10.1007/s00253-017-8358-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cardinali-Rezende J, Rojas-Ojeda P, Nascimento AMA, Sanz JL. Proteolytic bacterial dominance in a full-scale municipal solid waste anaerobic reactor assessed by 454 pyrosequencing technology. CHEMOSPHERE 2016; 146:519-525. [PMID: 26741558 DOI: 10.1016/j.chemosphere.2015.12.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 11/09/2015] [Accepted: 12/01/2015] [Indexed: 06/05/2023]
Abstract
Biomethanization entails a good means to reduce the organic fraction (OF) derived from municipal solid wastes (MSW). The bacterial diversity of a full scale MSW anaerobic reactor located in Madrid (Spain) was investigated using high-throughput 454 pyrosequencing. Even though the proteolytic bacteria prevailed throughout all of the process, community shifts were observed from the start-up to the steady-state conditions, with an increasing biodiversity displayed over time. The Bacteroidetes and the Firmicutes were the majority phyla: 55.1 and 40.2% (start-up) and 18.7 and 78.7 (steady-state) of the total reads. The system's lack of evenness remains noteworthy as the sequences affiliated to the proteolytic non-saccharolytic Proteiniphylum, Gallicola and Fastidiosipila genera, together with the saccharolytic Saccharofermentans, were predominant on the system and this predominance appears to correlate with the presence of a high ammonium concentration. The 454 pyrosequencing revealed a great diversity of rare organisms which seemingly do not sustain any metabolic roles in the course of the OF-MSW degradation. However, this scarce and unique microbiota can confer great resilience to the system as a buffer against nutritional and environmental changing conditions, thus opening the door to increase the current knowledge about the bacterial community dynamics taking place during MSW treatment processes.
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Affiliation(s)
- Juliana Cardinali-Rezende
- Department of Molecular Biology, Universidad Autónoma de Madrid, c/ Darwin 2, Madrid 28049, Spain; Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG 31.270-901, Brazil
| | - Patricia Rojas-Ojeda
- Department of Molecular Biology, Universidad Autónoma de Madrid, c/ Darwin 2, Madrid 28049, Spain
| | - Andréa M A Nascimento
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG 31.270-901, Brazil
| | - José L Sanz
- Department of Molecular Biology, Universidad Autónoma de Madrid, c/ Darwin 2, Madrid 28049, Spain.
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Root sepsis associated with insect-dwelling Sebaldella termitidis in a lesser dwarf lemur (Cheirogaleus medius). Antonie van Leeuwenhoek 2015; 108:1373-1382. [DOI: 10.1007/s10482-015-0590-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 09/11/2015] [Indexed: 11/26/2022]
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Understanding the Linkage between Elevation and the Activated-Sludge Bacterial Community along a 3,600-Meter Elevation Gradient in China. Appl Environ Microbiol 2015; 81:6567-76. [PMID: 26162883 DOI: 10.1128/aem.01842-15] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/07/2015] [Indexed: 11/20/2022] Open
Abstract
To understand the relationship between elevation and bacterial communities in wastewater treatment plants (WWTPs), bacterial communities in 21 municipal WWTPs across China, located 9 to 3,660 m above sea level (masl), were investigated by 454 pyrosequencing. A threshold for the association of elevation with bacterial community richness and evenness was observed at approximately 1,200 masl. At lower elevations, both richness and evenness were not significantly associated with elevation. At higher elevations, significant declines with increased elevations were observed for community richness and evenness. The declining evenness trend at the phylum level was reflected by distinct trends in relative abundance for individual bacterial phyla. Betaproteobacteria, Bacteroidetes, and Firmicutes displayed significant increases, while most other phyla showed declines. Spearman correlation analysis indicated that the community richness and evenness at high elevations were more correlated with elevation than with any other single environmental variable. Redundancy analysis indicated that the contribution of elevation to community composition variances increased from 3% at lower elevations to 11% at higher elevations whereas the community composition variance at higher elevations remained much more explained by operational variables (39.2%) than by elevation. The influent total phosphorus concentration, food/microorganism ratio, and treatment process were the three shared dominant contributors to the community composition variance across the whole elevation gradient, followed by effluent ammonia nitrogen and temperature at higher elevations.
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The Microbiota and Abundance of the Class 1 Integron-Integrase Gene in Tropical Sewage Treatment Plant Influent and Activated Sludge. PLoS One 2015; 10:e0131532. [PMID: 26115093 PMCID: PMC4482650 DOI: 10.1371/journal.pone.0131532] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 06/03/2015] [Indexed: 01/22/2023] Open
Abstract
Bacteria are assumed to efficiently remove organic pollutants from sewage in sewage treatment plants, where antibiotic-resistance genes can move between species via mobile genetic elements known as integrons. Nevertheless, few studies have addressed bacterial diversity and class 1 integron abundance in tropical sewage. Here, we describe the extant microbiota, using V6 tag sequencing, and quantify the class 1 integron-integrase gene (intI1) in raw sewage (RS) and activated sludge (AS). The analysis of 1,174,486 quality-filtered reads obtained from RS and AS samples revealed complex and distinct bacterial diversity in these samples. The RS sample, with 3,074 operational taxonomic units, exhibited the highest alpha-diversity indices. Among the 25 phyla, Proteobacteria, Bacteroidetes and Firmicutes represented 85% (AS) and 92% (RS) of all reads. Increased relative abundance of Micrococcales, Myxococcales, and Sphingobacteriales and reduced pathogen abundance were noted in AS. At the genus level, differences were observed for the dominant genera Simplicispira and Diaphorobacter (AS) as well as for Enhydrobacter (RS). The activated sludge process decreased (55%) the amount of bacteria harboring the intI1 gene in the RS sample. Altogether, our results emphasize the importance of biological treatment for diminishing pathogenic bacteria and those bearing the intI1 gene that arrive at a sewage treatment plant.
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Siniscalchi LAB, Vale IC, Dell'Isola J, Chernicharo CA, Calabria Araujo J. Enrichment and activity of methanotrophic microorganisms from municipal wastewater sludge. ENVIRONMENTAL TECHNOLOGY 2015; 36:1563-1575. [PMID: 25495866 DOI: 10.1080/09593330.2014.997298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, methanotrophic microorganisms were enriched from a municipal wastewater sludge taken from an Upflow Anaerobic Sludge Blanket reactor. The enrichment was performed in a sequencing batch reactor (SBR) with an autotrophic medium containing nitrite and nitrate. The microbial community composition of the inoculum and of the enrichment culture after 100 days of SBR operation was investigated and compared with the help of data obtained from 454 pyrosequencing analyses. The nitrite and nitrate removal efficiencies were 68% and 53%, respectively, probably due to heterotrophic denitrification. Archaeal cells of the anaerobic methanotrophic Archaic (ANME)-I and ANME-II groups were detected by polymerase chain reaction throughout the whole cultivation period. Pyrosequencing analysis showed that community composition was different among the two samples analysed. The dominant phyla found in the inoculum were Synergistestes, Firmicutes and Euryarchaeota, while Planctomycetes, Verrucomicrobia, Chloroflexi and Proteobacteria prevailed in the enriched biomass. The cultivation conditions decreased Methanobacterium abundance from 8% to 1%, and enriched for methanotrophic bacteria such as Methylocaldum, Methylocistis and Methylosinus. Sequences of Methylocaldum sp. accounted for 2.5% of the total reads. The presence and high predominance of Verrucomicrobia in the enriched biomass suggested that other unknown methanotrophic species related to that phylum might also have occurred in the reactor. Anaerobic methane oxidation activity was measured for both samples, and showed that the activity of the enrichment culture was nearly three times higher than the activity of the inoculum. Taken together, these results showed that the inoculum type and cultivation conditions were properly suited for methanotrophic enrichment.
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Affiliation(s)
- Luciene Alves Batista Siniscalchi
- a Department of Sanitary and Environmental Engineering , Universidade Federal de Minas Gerais (UFMG) , Av. Antonio Carlos, 6627, Belo Horizonte , MG 31270-901 , Brazil
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